Ceiling fan



FIG. 1 is a rear elevation view of a ceiling fan according to the present design;

FIG. 2 is a left side elevation view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a right side view thereof; and,

FIG. 7 is a bottom perspective view thereof.

The broken lines shown are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for ceiling fan, as shown and described. 